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| Patent # | Description |
|---|---|
| US-4,833,478 |
Automatic direction finder antenna array An automatic direction finder antenna array having a plurality of pairs of oppositely positioned antenna elements arranged radially from a common center with... |
| US-4,833,477 |
Emergency vessel location system An omega, loran or satellite navigation receiver is provided with a speech synthesizer coupled to its latitude/longitude output which is in turn coupled to a... |
| US-4,833,476 |
Electromagnetic field measuring technique to assess shielding
effectiveness A threat field sensor has a hollow metal enclosure with imperforate side walls except for a single aperture that is small as compared with the wavelength of... |
| US-4,833,475 |
Raster scan radar with true motion memory A radar system having a raster scan memory storing scan-to-scan integrated true motion stabilized data. A scan converter generates x,y addresses along azimuth... |
| US-4,833,474 |
A/D converter An A/D converter apparatus comprises: a sampling signal generating means to generate an oversampling signal and an internal sampling signal; a converter means to... |
| US-4,833,473 |
Digital to analog converter with switch function compensation A digital to analog converter including an R-2R ladder network receives digitally encoded sample signals in parallel through a set of chains of transistor... |
| US-4,833,472 |
System for setting an analog resistor to a selectable, digitally
predeterminable value An arrangement for setting an analog resistor to a value which is digitally predetermined. The arrangement contains a resistor (2) which is variable by a control... |
| US-4,833,471 |
Data processing apparatus There is provided a data processing apparatus for encoding or decoding binary data such as a magnetic disk or an optical disk in which a binary data sequence is... |
| US-4,833,470 |
Code conversion apparatus Each of data words has m bits. The m-bit data words are converted into corresponding n-bit code words. The n-bit code words are concatenated to form a bit... |
| US-4,833,469 |
Obstacle proximity detector for moving vehicles and method for use
thereof A proximity sensing and indicating system for use in automobiles for instance to provide a warning signal to both the car driver and possibly other drivers that... |
| US-4,833,468 |
Layered network A Layered Network system may provide varying cost from order NlogN low-cost networds, to completely-routing, fully-Layered networks with cots of order Nlog... |
| US-4,833,467 |
Data transmission system In a digital data transmission system, a transmitting device converts the data to be transmitted into a series of bits, in the form of data pulses. Each data... |
| US-4,833,466 |
Pulse code modulation decommutator interfacing system A pulse code modulation decommutator interface system includes a standard computer interface, a standard decommutator interface, control logic and memory.... |
| US-4,833,465 |
Electronic door lock The electronic door lock for an electronic key provided with an electronic store for a key word datum has a latch bolt (5) actuatable at least from the inside of... |
| US-4,833,464 |
Electrophoretic information display (EPID) apparatus employing grey
scale capability Various techniques and apparatus for grey scale operation for an electrophoretic display panel (EPID) are provided. The apparatus includes circuitry with a... |
| US-4,833,463 |
Gas plasma display Disclosed is an ac plasma display of the type employing three electrodes per pel which is useful for full color displays. A phosphor layer is provided over the... |
| US-4,833,462 |
Raster-scanned cathode ray tube display with cross-hair cursor A raster-scanned interlaced cathode ray tube display is refreshed from a bit buffer (1). Cursor control logic (17) compares the refresh address (3, 4) with a... |
| US-4,833,461 |
Utility shut off apparatus Apparatus for shutting off utilities, such as gas and electricity, automatically in the case of an emergency, such as an earthquake. The utility can be a gas or... |
| US-4,833,460 |
Phasing indicator An apparatus for visually indicating abnormal phase relationships between incoming or outgoing phases for a plural phase device, comprised of a plurality of... |
| US-4,833,459 |
Circuit arrangement for continually monitoring the quality of a
multicell battery The quality of a particular physical or chemical parameter which exists at the cells of a multicell battery, such as for example, the voltage, current or... |
| US-4,833,458 |
Smoke and fire detector for remote sensing A smoke and fire detector apparatus includes a base for mounting the apparatus on a wall and a tubular extension having one end attached to the base and an... |
| US-4,833,457 |
Immersion control device and associated alarm system An immersion control device. The device includes a fluid filled manifold and a fluid filled support device. Fluid pressure in the fluid filled support device... |
| US-4,833,456 |
Ski security device An anti-theft alarm device for portable articles is disclosed. The device comprises a motion sensing component for sensing movement of the device and for... |
| US-4,833,455 |
Anti-tamper device for utility meters An anti-tamper device is disclosed for utility meters of the type comprises comprising a fixed base unit and a removable plug-in unit associated with said base... |
| US-4,833,454 |
Door chime An audio signal device for a door mounted advertising display, the device includes a signal unit, a battery connected to said signal unit, the unit including a... |
| US-4,833,453 |
Monitoring of movable components A method and device for monitoring the operation of a component which is located in a sealed enclosure and is movable into a selected operating position in... |
| US-4,833,452 |
Safety device and method of establishing group communication An electronic two way signalling apparatus for permitting two or more persons not in line-of-sight with each other to activate transceivers for broadcasting and... |
| US-4,833,451 |
Individual source identification An individual source identification of several signal providers or pick-ups with closable contacts disposed in a twin-wire signal line, in particular for fire... |
| US-4,833,450 |
Fault detection in combination intrusion detection systems An intrusion detection system employs a microwave subsystem and a passive infra-red subsystem. Both systems must produce an output signal indicative of an... |
| US-4,833,449 |
Home security system A security system for a home having one or more security zones. A main station is associated with the home and, when initialized, constantly monitors the state... |
| US-4,833,448 |
Warning device to alert passers-by before opening an automobile door A warning device for alerting passers-by, particularly oncoming motorists, before opening an automobile door will be installed on an automobile to produce a... |
| US-4,833,447 |
Input device An input device relating to the manipulation of data indicating the depressed state of key switches and to the transmission of data and adapted for picking up... |
| US-4,833,446 |
Keyboard apparatus and method A chordic keyboard including chordic data entry locations corresponding to the five fingers of the human hand and correlation apparatus for correlating a set of... |
| US-4,833,445 |
Fiso sampling system A fast-in, slow-out sampling system that operates at a very high sampling frequency at high accuracy. The system includes a parallel processing sampling... |
| US-4,833,444 |
Bicycle brake light system A brake light system for a bicycle comprises a light housing having a self-contained power supply, and a light unit with a red lens includes an elongated... |
| US-4,833,443 |
Portable vehicle signal flag and warning flasher A portable lightweight vehicle signal flag and warning light is presented comprising a boom which has at least one pair of opposed lenses and a slotted-block... |
| US-4,833,442 |
Wheel immobilizer-chock w/integral latch and alarm An anti-theft security device, attachable to various types of parked vehicles, such as motorcars, motorcycles, light-aircraft, etc.; said device having a... |
| US-4,833,441 |
Reservoir with a reed switch A reservoir, for retaining liquid such as coolant of a radiator of an automobile comprises a container having an opening and a deep portion. A switch case... |
| US-4,833,440 |
Conductive elastomers in potentiometers & rheostats An apparatus for varying impedance includes a first conductive member, a second member associated therewith, and a third wiper member electrically contacting the... |
| US-4,833,439 |
Unitary switch and circuit breaker A unitary switch and circuit breaker (10) includes a switch circuit (14, 16, 22, 24, 26, 56, 57, 58) with first and second contacts (28, 30), the switch circuit... |
| US-4,833,438 |
Method of manufacturing a lightning arrester, and a lightning arrester
obtained by the method A double molded over method of manufacturing a lightning arrester in which a central core 1 is made of zinc oxide in a first step, then two metal end fittings 5,... |
| US-4,833,437 |
Magnetic core inductor A winding for a magnetic core is preformed as a flat conducting strip disposed in a helical coil configuration of circular shape, having elongated integral tabs... |
| US-4,833,436 |
Formed metal core blocking The invention is directed to a formed metal blocking, for mounting within wedge-shaped gaps between coils of a toroidal transformer, including butterfly-shaped... |
| US-4,833,435 |
Electromagnetic relay An electromagnetic relay having a double armature structure comprises: an electromagnet; a pair of armatures which are individually rotatably arranged at the... |
| US-4,833,434 |
Superconducting electromagnet for NMR imaging A superconducting electromagnet for nuclear magnetic resonance imaging has a pair of Z gradient coils surrounded by a heat shield. The heat shield comprises an... |
| US-4,833,433 |
Magnet system for nuclear spin tomography having superconducting coils
and a cold shield A magnet system for a nuclear spin tomography installation contains annular superconducting coils for generating a magnetic background field and ... |
| US-4,833,432 |
Saturable reactor for use in self-convergence system fo deflection yoke The saturable reactor employs two dual drum cores having two winding portions which are sandwiched by two common permanent magnets to statically bias the... |
| US-4,833,431 |
Triple-resonance pulse transformer circuit A triple resonance circuit is provided for improving the efficiency of high voltage pulses for pulse transformer applications. This circuit provides high... |
| US-4,833,430 |
Coupled-dual resonator crystal A dual-coupled resonator crystal is fine-tuned by frequency balancing the input and output resonators and thereafter plating a coupling adjust spot on the... |
| US-4,833,429 |
Quadrature combiner A quadrature coil combiner for phase shifting the pulses and signals of a quadrature coil system used in magnetic resonance (MR) systems to selectively combine... |
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